553206546521 has 8 divisors (see below), whose sum is σ = 553540825344. Its totient is φ = 552872370960.

The previous prime is 553206546479. The next prime is 553206546523. The reversal of 553206546521 is 125645602355.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 553206546521 - 2¹⁸ = 553206284377 is a prime.

It is a super-3 number, since 3×553206546521³ (a number of 36 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (553206546523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12442751 + ... + 12487131.

It is an arithmetic number, because the mean of its divisors is an integer number (69192603168).

Almost surely, 2^553206546521 is an apocalyptic number.

It is an amenable number.

553206546521 is a deficient number, since it is larger than the sum of its proper divisors (334278823).

553206546521 is a wasteful number, since it uses less digits than its factorization.

553206546521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51631.

The product of its (nonzero) digits is 1080000, while the sum is 44.

The spelling of 553206546521 in words is "five hundred fifty-three billion, two hundred six million, five hundred forty-six thousand, five hundred twenty-one".